Mole Conversions 2 Question Preview (ID: 55588)
Simple Conversions.
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How many moles of tungsten atoms are there in 4.8 E25 atoms of tungsten?
a) 0.13
b) 0.8
c) 0.013
d) 80
How many atoms are there in 0.075 mol of titanium?
a) 1.2 E-25
b) 6.4 E2
c) 4.5 E22
d) 2.2 E24
What is the molar mass of AuCl3?
a) 96
b) 130
c) 304
d) 233
How many moles of CaBr2 are there in 5.0 grams of CaBr2?
a) 100
b) 0.025
c) 0.042
d) 3.0 E24
What is the gram formula mass of (NH4)2CO3?
a) 96
b) 43
c) 144
d) 78
How many grams are in 0.90 mol Pd?
a) 95.8
b) 106
c) 1.80
d) 0.090
What is the number of moles of beryllium atoms in 36 g of Be?
a) 4.0
b) 0.25
c) 45
d) 2.2 E25
Avogadro's number is
a) 6 E23
b) 12 dozen
c) 10000
d) 1.9 E-15
How many atoms of carbon are in 6.00g of carbon?
a) 1.2 E24
b) 3.01 E23
c) 1.5 E23
d) 6.02 E23
aHow many grams are in 1.2 E24 molecules of CO?
a) 28
b) 56
c) 1.2
d) 6.0
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